Dual-Connectivity NOMA Provisioning via Available Access Point Capacity

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Solution Overview

Problem

Existing wireless telecommunications networks face challenges in efficiently managing Non-Orthogonal Multiple Access (NOMA) in dual connectivity scenarios due to limited processing capacity at access points, leading to bottlenecks in data transmission and unfairness among users.

Innovation Solution

The method involves discovering and coordinating user equipment connections to secondary access points with available processing capabilities for NOMA through node discovery processes, allowing users to connect using NOMA schemes when needed to enhance data rate and fairness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If NOMA schemes are implemented to accommodate more users, then user access capacity and data rates are improved, but processing complexity and computational burden at access points increase

Engineering Contradiction:
Improveuser access capacityVSAvoidprocessing complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments the processing burden by dividing users into two groups: those served by OMA schemes and those served by NOMA schemes. This segmentation allows the system to distribute processing complexity across multiple access points, where only those with sufficient computational capacity handle NOMA users, thereby accommodating more users without overwhelming any single access point's processing capabilities.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a new dimension of processing capability assessment by evaluating not only the basic processing capacity but also the available processing capacity at each access point. This dimensional expansion allows the system to dynamically assign NOMA users to access points based on real-time processing availability, thereby scaling user access capacity while managing complexity through multi-dimensional resource evaluation.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Speed

If multiple access points are used in dual connectivity to increase throughput, then data transmission speed is improved, but coordination complexity and resource management difficulty increase

Engineering Contradiction:
Improvedata transmission speedVSAvoidcoordination complexity
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The patent implements feedback mechanisms where access points continuously report their processing capacity status and user channel quality information to the network controller. This feedback enables dynamic adjustment of user assignments and resource allocation across dual-connected access points, coordinating throughput enhancement while managing complexity through real-time information exchange and adaptive decision-making.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent changes key parameters such as processing capacity thresholds and user assignment criteria based on real-time network conditions. By dynamically adjusting these parameters, the system optimizes data transmission speed across dual-connected access points while managing coordination complexity through adaptive parameter tuning rather than fixed rigid configurations.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If NOMA processing is concentrated at a single access point, then processing efficiency is improved, but system reliability and load balancing capability deteriorate

Engineering Contradiction:
Improveprocessing efficiencyVSAvoidsystem reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent merges NOMA processing capabilities across multiple access points rather than concentrating them at a single point. By combining the processing resources of multiple access points that support NOMA, the system maintains high processing efficiency while distributing the load, thereby preventing any single access point from becoming a bottleneck or single point of failure, thus enhancing system reliability and load balancing capability.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS20250220747A1Multiple access scheme provisioning
Publication Date: 2025.07.03 BRITISH TELECOM PLC
  • US20250220747A1 patent drawing
  • US20250220747A1 patent drawing
  • US20250220747A1 patent drawing

AI summary

Examples exploit the processing capabilities of the available access points in a wireless telecommunications network operating in dual connectivity operation to enhance the data rate and fairness among the users. The wireless telecommunications network may include a first access point, or master node, connected to a plurality of further access points, or secondary nodes. The master node discovers which of the secondary access nodes has the processing capabilities and available processing capacity to handle NOMA transmissions. The master node can then coordinate the connection of a selected group of users to one of the secondary nodes that can support NOMA. The processing capabilities and available processing capacity to handle NOMA transmissions can be communicated by the secondary nodes to the master node actively, for example in a periodic manner, or reactively, for example as a result of a request for such information from the master node.